hello every body im back again i want my mom visiting me here in minnesota my wife is american citizen i have green card i need some information on the process thanks visa journey

Your mother applies for a B2 Visitors Visa at the local US Consulate.

My wife wants the same thing. She wants to bring her mother and sisters here to visit for a month or two. We are waiting to do anything until she is a permanent resident. Does anyone know how likely or unlikely it will be that they would be allowed in the US to visit?

Never mind. I dug a little deeper and found out my wife needs to be a citizen first. She's not going to be happy to hear that.

I am here with K 3 visa. My AOS is still in process. My mother received a B 2 visa. No problems for that.
Your mother has to apply for B 2 visa at her local US embassy. Just follow the instruction from their website about visitor visas.
We write a letter of invitation and she brought for the interview at the embassy documents proving that she had strong ties to Bulgaria and her intent to return after a short stay in the United States.

I think this is not true. Especially for my country. However, I don't know how this issue is with the embassy in Peru. In most cases the applicants has to support their claim that they will return home after a temporary visit to the United States (such as proof of ownership of property, bank statements, proof of employment, proof of family ties, etc.). If they can not prove this, the visa will be denied. Embassies are different. Check with the Peru embassy's website about visitor/tourist visa.